55233400000 has 336 divisors, whose sum is σ = 144651679200. Its totient is φ = 20894720000.

The previous prime is 55233399997. The next prime is 55233400003. The reversal of 55233400000 is 433255.

It is an interprime number because it is at equal distance from previous prime (55233399997) and next prime (55233400003).

It is not an unprimeable number, because it can be changed into a prime (55233400003) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 516199947 + ... + 516200053.

It is an arithmetic number, because the mean of its divisors is an integer number (430510950).

Almost surely, 2^55233400000 is an apocalyptic number.

55233400000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55233400000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72325839600).

55233400000 is an abundant number, since it is smaller than the sum of its proper divisors (89418279200).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55233400000 is an equidigital number, since it uses as much as digits as its factorization.

55233400000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 262 (or 232 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 22.

Adding to 55233400000 its reverse (433255), we get a palindrome (55233833255).

The spelling of 55233400000 in words is "fifty-five billion, two hundred thirty-three million, four hundred thousand".